Technical data sheet CRISTALLIT®-FLEX-max Natural stone medium bed mortar S1
Material number
Contents
Unit of quantity
Packaging
Colour
205427001
20
KG
Bag
White
Product features C2 FE S1 after DIN EN 12004 White High slump resistance Up to 30 mm layer thickness Rapid setting
Advantages no sagging of heavy boards - even with a high layer thickness rapid construction progress
Areas of application for laying insensitive, discolouration and deformation-sensitive natural stone in the thin and medium bed method for laying artificial stone, window sills, natural stone stairs and ceramic tiles in the thin and medium bed method for heated and unheated substrates For interior and exterior use
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 1/4
30/01/2025
Technical data sheet CRISTALLIT®-FLEX-max Technical Data Material properties Base material
Classification of the reaction to fire in accordance with DIN EN 13501-1
sand cement Additive (polymer modified) E
Mixing Maturing time Water addition
approx. 3 minutes approx. 6 l
Application Substrate temperature Pot life Consumption pro m² and mm layer thickness Foot traffic after Consumption with 6mm notched trowel Consumption with 8mm notched trowel Consumption with 10mm notched trowel Consumption with 20mm notched trowel Consumption with 20mm trowel with semicircular teeth Application temperature Available after Hardening time / full resilience Open time
approx. 5 - 25 °C approx. 60 minutes approx. 0.74 kg approx. 3 hours 1.6 kg/m² 2.1 kg/m² 2.6 kg/m² 5.2 kg/m² 6.5 kg/m² approx. 5 - 25 °C approx. 3 hours approx. 7 days approx. 20 minutes
Processing equipment Aids/tools Stirrer Trowel Toothed trowel
Suitable substrate Cement-based screed (CT) Calcium sulphate screeds (CA, CAF) Mastic asphalt screeds (AS) Magnesia screeds (MA) Concrete Dry screeds Raised floors Floor levelling compounds Tile bearing elements Decoupling mats & boards Bonded waterproofing Firmly adhering tiled finishes Cement plaster Lime-cement plaster Gypsum plaster Light plaster Gypsum boards Gypsum fibre boards Cement and fibre cement boards
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 2/4
Technical data sheet CRISTALLIT®-FLEX-max Preparing the substrate Requirement for substrate 1. 2. 3. 4. 5. 6.
Load-bearing Dry Even Sealed in the surface Free of adhesion inhibiting substances Free of cracks
Preparing the surface 1. 2. 3. 4.
Check the application substrate and determine the moisture content using the CM method. Remove impurities, adhesion-reducing substances and binder accumulations/laitance layers. Prime absorbent substrates with ASO-Unigrund. Prime non-absorbent substrates with ASO-Unigrund-S.
Moisture content of the CM measurement
Application Mixing 1. 2. 3. 4. 5.
Put the water into a clean mixing bucket and mix with the powder component with a stirrer to produce a homogeneous, lump-free mass. After a settling period of ca. 3 minutes, thoroughly homogenise the compound again. Do not mix more material than can be applied during the pot life. Always clean the mixing container, as setting CRISTALLIT®-FLEX-max acts as a catalyst. Do not mix with other cementitious mortars!
Application 1. Spread the mixed mortar evenly across the substrate surface and comb through with a suitable notched trowel to suit the board size. 2. Apply the surfacing materials within the adhesive open time.
Cleaning tools Clean tools thoroughly with water after use.
Storage conditions Storage Store in a cool and dry place. Min. 12 months in the original canister. Promptly use opened container.
Disposal Product residues can be disposed of in accordance with disposal code AVV 17 01 07.
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 3/4
Technical data sheet CRISTALLIT®-FLEX-max Notes Not suitable for areas submerged under water! Protect surfaces that are not to be treated from the effects of CRISTALLIT®-FLEX-max! When used in exterior areas, be sure to use suitable Schomburg sealing materials. When using in rooms exposed to moisture penetration, note the required use of Schomburg sealing materials. When laying natural stone and synthetic stone, the product-specific properties of the coating materials (tendency to discolour, risk of curling, etc.) and the laying recommendations of the manufacturer must be taken into account. We recommend carrying out trial laying! When laying large formats larger than 50 × 50 cm, use a scratch coat on the back or lay using the floating-buttering method. Do not add water or new mortar to existing CRISTALLIT®-FLEX-max mortar that has already set in order to make it workable again. (Risk of inadequate strength development) In the case of magnesia screeds as a substrate, these must be protected in advance by using ASODUR®-GBM. Danger of magnesite pouring. When laying covering materials larger than 60cm × 60cm on calcium sulphate screeds, we recommend using ASODUR®-GBM.
Relevant regulations Planning, inspection of substrates and building site circumstances, laying, grouting and subsequent care of the work must be done in accordance with the relevant DIN standards and recognised rules of technology (e.g. the ZDB sheets of the Zentralverband Deutsches Baugewerbe e.V.) in the latest version. Observe applicable safety data sheet! GISCODE: ZP1 Explanations Conformity / Declaration / Verification
The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.
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